2025-02-17T15:43:13-05:00 2024-03-31 203746583 TAYLOR ROTH AND COMPANY 1580 LINCOLN ST STE 520 DENVER CO 802031517 990 2023-04-01 846059504 ASPEN CENTER FOR PHYSICS ASPE 9709252585 700 WEST GILLESPIE STREET ASPEN CO 81611 AMANDA JENKINS ADMIN VICE PRESIDENT 9709252585 2025-02-14 true true SHANNON L GILLILAND P02243875 3038308109 2025-02-17 2023 2025-03-06 01:10:19Z AMANDA JENKINS 700 WEST GILLESPIE STREET ASPEN CO 81611 4058167 false X WWW.ASPENPHYS.ORG X 1962 CO THE CENTER IS A SCIENTIFIC ORGANIZATION WHICH PROMOTES ORGANIZED RESEARCH IN PHYSICS, ASTROPHYSICS, AND RELATED FIELDS. 74 35 13 128 0 1135464 2019503 1551972 1843432 69312 134683 36406 34226 2793154 4031844 452051 838063 0 401802 458325 0 4583 1973908 2367371 2827761 3663759 -34607 368085 6783128 8436031 720503 693904 6062625 7742127 X ASPEN CENTER FOR PHYSICS IS A SCIENTIFIC ORGANIZATION WHICH PROMOTES ORGANIZED RESEARCH IN PHYSICS, ASTROPHYSICS, AND RELATED FIELDS THROUGH PROGRAMS OF INDIVIDUAL AND COLLABORATIVE RESEARCH, WORKSHOPS, AND CONFERENCES, AS WELL AS PROMOTES THE EDUCATION OF THE GENERAL PUBLIC THROUGH PUBLIC LECTURES AND OTHER ACTIVITIES. false false 3081010 838063 1843432 SUMMER AND WINTER PROGRAMS: SINCE ITS INCEPTION IN 1962, ASPEN CENTER FOR PHYSICS HAS PROVIDED A UNIQUE PHYSICAL AND SCIENTIFIC ENVIRONMENT IDEALLY SUITED FOR STIMULATING INTERACTIONS, COLLABORATIONS, AND INNOVATION IN PHYSICS RESEARCH. FOR 16 WEEKS EACH SUMMER, MORE THAN 500 LEADING INTERNATIONAL RESEARCHERS, FREED FROM THE USUAL CONSTRAINTS AND DISTRACTIONS OF THEIR HOME INSTITUTIONS, COME TO ASPEN TO ENGAGE IN RESEARCH AT THE FOREFRONT OF THEIR FIELDS. RESEARCH IS CONDUCTED: (A) IN THE CONTEXT OF WORKSHOPS IN AREAS AT THE FOREFRONT OF PHYSICS RESEARCH; (B) IN SMALL GROUPS FOCUSED ON SPECIFIC PROJECTS; OR, (C) BY INDIVIDUAL INVESTIGATORS CARRYING OUT THEIR OWN RESEARCH. THE SCIENTIFIC PROGRAMS EMPHASIZE OPEN PROBLEMS AT THE CUTTING EDGE AND ARE DESIGNED TO MAXIMIZE INFORMAL INTERACTIONS WITHIN EACH AREA AND CROSS-FERTILIZATION BETWEEN DIFFERENT AREAS. WHILE CONTINUING TO PROVIDE LEADERSHIP IN THE CENTRAL AREAS OF PHYSICS (PARTICLE PHYSICS, ASTROPHYSICS, AND CONDENSED MATTER PHYSICS), ASPEN CENTER FOR PHYSICS HAS BEEN OPEN TO NEW DIRECTIONS IN PHYSICS AS WELL AS TO SCIENCE AT THE INTERFACE BETWEEN PHYSICS AND OTHER DISCIPLINES (BIOLOGY, CHEMISTRY, ENGINEERING, MATERIAL SCIENCE, AND MATHEMATICS). IN ADDITION, 8 ONE- WEEK WINTER CONFERENCES BRING TOGETHER UP TO 110 RESEARCHERS PER WEEK IN AREAS OF CURRENT INTEREST IN PHYSICS AND INTER-DISCIPLINARY PHYSICS RESEARCH. THE CENTER PROVIDES OFFICE SPACE, OFFICE SUPPLIES, MEETING SPACE, LIBRARY FACILITIES, AND NETWORK ACCESS TO ITS PARTICIPANTS. SUPPORT IS PROVIDED TO ALL INDIVIDUALS DURING THE SUMMER SESSION FOR WHOM LODGING IS ARRANGED BY THE CENTER. PHYSICISTS' SUMMER BILLS ARE REDUCED BY THE AMOUNT OF SUPPORT; OVERPAYMENTS ARE REFUNDED BY CHECK. WINTER SUPPORT IS USUALLY AWARDED TO JUNIOR SCIENTISTS AND THOSE WITH A DEMONSTRATED NEED IN ORDER TO ATTEND. DURING THE FISCAL YEAR ENDED MARCH 31, 2024, THERE WERE 563 SUMMER PARTICIPANTS (SUMMER 2023) AND 624 WINTER PARTICIPANTS (BETWEEN JANUARY AND MARCH 2024). 28861 OUTREACH PROGRAM: ASPEN CENTER FOR PHYSICS OUTREACH PROGRAM INCLUDES MANY OPTIONS AND AVENUES FOR THE PUBLIC TO BECOME INFORMED ABOUT CUTTING-EDGE PHYSICS RESEARCH, AND TO ENGAGE CHILDREN AND YOUTH IN OPPORTUNITIES FOR FURTHER EDUCATION IN THE SCIENCES. (1) PUBLIC LECTURES. A CORE OUTREACH ACTIVITY FOR THE CENTER. RENOWNED PHYSICISTS DELIVER WINTER AND SUMMER LECTURES IN ASPEN VENUES DELINEATING THEIR CURRENT RESEARCH OR CURRENT SCIENTIFIC TOPICS OF GENERAL INTEREST. SUMMER ATTENDANCE AT 11 LECTURES WAS 910 PEOPLE. WINTER ATTENDANCE AT 8 LECTURES WAS 668. (2) HIGH SCHOOL MENTOR PROGRAM. ACP HIRES RISING SENIOR PHYSICS STUDENTS FROM 3-5 VALLEY HIGH SCHOOLS TO WORK FOR A SUMMER WEEK AT THE CENTER TO SEE WHAT THEORETICAL PHYSICISTS DO AND TO CHAT WITH 2 OR 3 PHYSICISTS ABOUT COLLEGE, CAREERS, AND/OR SCIENCE. ABOUT 19 PHYSICISTS AND STUDENTS PARTICIPATED IN 2023. (3) HIGH SCHOOL MONTHLY RADIO SHOW--RADIO PHYSICS. VALLEY HIGH SCHOOL PHYSICS STUDENTS FROM 3-5 SCHOOLS INTERVIEW PHYSICISTS ON A MONTHLY RADIO SHOW. THIS INTRODUCES THE STUDENTS TO SCIENCE, PUBLIC SPEAKING, AND INFORMS THE LISTENING PUBLIC ABOUT CURRENT PHYSICS TOPICS. THERE WERE 13 STUDENT AND PHYSICIST PARTICIPANTS FOR THIS FISCAL YEAR. (4) ALL PUBLIC LECTURES ARE RECORDED AND ALL VIDEOS ARE AVAILABLE FOR VIEWING ON THE ASPEN CENTER FOR PHYSICS YOUTUBE CHANNEL AND WITH LINKS FROM THE ACP WEBSITE. THERE ARE OVER 350 ACP SCIENTIFIC LECTURES AND INTERVIEWS AVAILABLE ONLINE AT NO CHARGE. 3109871 true true false false false false false false false true true false false false false true true false false false true false false false false false false false true true false false false false true false false false true false false false false false false false false true 45 0 true 13 true false false false false false false false false false false false false X 74 35 false false false false false false false true true false false true true false false true true true true false X AMANDA JENKINS 9709252585 700 WEST GILLESPIE STREET ASPEN CO 81611 AMANDA JENKINS ADMIN VICE P 40.00 X 152333 0 9140 HIROSI OOGURI CHAIR 1.00 X X 0 0 0 MATTHIAS TROYER PRESIDENT 1.00 X X 0 0 0 VICKY KALOGERA VICE PRESIDE 1.00 X X 0 0 0 ZOLTAN LIGETI VICE PRESIDE 1.00 X X 0 0 0 QIMIAO SI TREASURER 1.00 X X 0 0 0 ILYA MANDEL ASST TREASUR 1.00 X X 0 0 0 GIL REFAEL CORPORATE SE 1.00 X X 0 0 0 VIJAY BALASUBRAMANIAN SCIENTIFIC S 1.00 X X 0 0 0 LAURA REINA SCIENTIFIC S 1.00 X X 0 0 0 SUVI GEZARI ASST SCIENTI 1.00 X X 0 0 0 CSABA CSAKI TRUSTEE 0.50 X 0 0 0 DANIEL FREED TRUSTEE 0.50 X 0 0 0 EVALYN GATES TRUSTEE 0.50 X 0 0 0 ALEXANDER GROSBERG TRUSTEE 0.50 X 0 0 0 DAVID R MORRISON TRUSTEE 0.50 X 0 0 0 ILONA NEMETH TRUSTEE 0.50 X 0 0 0 ENRICO RAMIREZ-RUIZ TRUSTEE 0.50 X 0 0 0 WASHINGTON TAYLOR TRUSTEE 0.50 X 0 0 0 RISA WECHSLER TRUSTEE 0.50 X 0 0 0 CLARE YU TRUSTEE 0.50 X 0 0 0 152333 9140 1 false true false 544152 1475351 26322 2019503 PARTICIPANT HOUSING REIMBURSE 541700 1019540 1019540 REGISTRATION FEES - SUMMER 541700 436900 436900 REGISTRATION FEES - WINTER 541700 311500 311500 OTHER WINTER PARTICIPANTS 541700 63161 63161 OTHER SUMMER PARTICIPANTS 541700 12331 12331 1843432 133101 133101 33300 33300 33300 33300 27905 26323 1582 1582 1582 OTHER REVENUE AND REFUNDS 541700 926 926 926 4031844 1844358 167983 838063 838063 163962 108215 54107 1640 245806 162231 81117 2458 18625 12293 6145 187 29932 19755 9879 298 12950 12950 176142 176142 40318 36997 3321 27675 12177 15498 142559 62542 80017 63205 63205 163514 71946 91568 33145 14584 18561 HOUSING RENTS & CLEANING 1567460 1567460 PARTCPNT EXP--REIMBURSED 68452 68452 PARTICIPANT SUPPLIES 60499 60499 PUBLIC LECTURES-OUTREACH 7780 7780 3672 3672 3663759 3109871 549305 4583 853839 200 602873 55000 1012635 20694 24005 76305 85014 6427187 5404849 1162430 1022338 4614860 5688966 6783128 8436031 56178 16794 664325 677110 720503 693904 X 5905819 6623608 156806 1118519 6062625 7742127 6783128 8436031 X 368085 691872 619545 X false true X true false X 806511 292389 772297 1171758 2019503 5062458 806511 292389 772297 1171758 2019503 5062458 1232754 3829704 195453 90131 102095 127688 166401 681768 5744226 5454883 0.66670 0.79890 X RESTRICTED RESTRICTED RESTRICTED RESTRICTED RESTRICTED RESTRICTED RESTRICTED RESTRICTED 4311889 1886205 973259 -8000 -916492 6246861 4666406 950080 -66049 -8000 -1230548 4311889 4739425 565137 90866 -20534 -708488 4666406 3788547 150400 1073712 -1334 -271900 4739425 4201526 728640 -225367 -9000 -907252 3788547 0.82090 0.17910 false false 20 20 4176530 3282798 893732 391224 300138 91086 1859413 1821913 37500 1022338 X 4723716 691872 691872 4031844 4031844 3044214 3044214 619545 619545 3663759 SCHEDULE D, PAGE 2, PART V, LINE 4 BOARD-DESIGNATED ENDOWMENT IS TO BE USED FOR CONTINGENCIES. NET ASSETS WITH DONOR RESTRICTIONS ARE SPENT IN ACCORDANCE WITH DONORS' DESIGNATIONS. SCHEDULE D, PAGE 3, PART X THE CENTER IS EXEMPT FROM FEDERAL AND STATE INCOME TAXES UNDER THE PROVISIONS OF INTERNAL REVENUE CODE SECTION 501(C)(3). ACCORDINGLY, NO PROVISION OR LIABILITY FOR INCOME TAXES HAS BEEN PROVIDED IN THE ACCOMPANYING FINANCIAL STATEMENTS. SCHEDULE D, PAGE 4, PART XII, LINE 4B PARTICIPANT SUPPORT - INTERNAL CHARGES 619,545 CENTRAL AMERICA AND CARIBBEAN FUNDRAISING false false false false false false SCHEDULE F, PAGE 1, PART I, LINE 3 CENTRAL AMERICA AND CARIBBEAN 0 0 true HSG, REGISTRATION, TRAVEL 544 812225 GIFTS AND GRANTS 48 25838 SCHEDULE I, PAGE 4, PART IV ALL PARTICIPANTS IN ACP HOUSING WERE FUNDED BY ONE OF THREE DIFFERENT SOURCES, INCLUDING THE NATIONAL SCIENCE FOUNDATION (NSF), THE SIMONS FOUNDATION AND THE SLOAN FOUNDATION. THE SIMONS FOUNDATION HAS GENEROUSLY PROVIDED FUNDS TO SUPPORT PHYSICISTS COMING FROM COUNTRIES WHERE SCIENCE FUNDING IS NOT STRONG OR FROM ECONOMICALLY DISADVANTAGED COUNTRIES IN ADDITION TO POSTDOCS AND UNDERREPRESENTED GROUPS. THE SIMONS GRANT PAYS FOR AN ACCEPTED INDIVIDUAL'S REGISTRATION FEE, SHARED HOUSING WHILE IN ASPEN (ONE'S OWN ROOM IN A TWO, THREE, OR FOUR-BEDROOM APARTMENT), AND A PORTION OF AIR TRAVEL, WHICH WILL VARY FROM YEAR TO YEAR, BUT MAY NOT COVER ALL OF ONE'S TRAVEL EXPENSES. SUPPORT FROM THE ALFRED P. SLOAN FOUNDATION AIMS TO REDUCE BARRIERS TO PARTICIPATION IN THE SUMMER PROGRAMS OF THE ASPEN CENTER FOR EARLY-CAREER SCIENTISTS BELONGING TO DOMESTIC UNDERREPRESENTED GROUPS IN PHYSICS DEPARTMENTS ACROSS U.S. INSTITUTIONS, INCLUDING (BUT NOT LIMITED TO) GENDER, ETHNICITY, AND RACE. THE SLOAN GRANT PAYS FOR AN ACCEPTED INDIVIDUAL'S REGISTRATION FEE, SHARED HOUSING WHILE IN ASPEN (ONE'S OWN ROOM IN A TWO, THREE, OR FOUR-BEDROOM APARTMENT), AND A PORTION OF AIR TRAVEL, WHICH WILL VARY FROM YEAR TO YEAR, BUT MAY NOT COVER ALL OF ONE'S TRAVEL EXPENSES. THOSE SUPPORTED BY NSF RECEIVED 400 PER WEEK AND THOSE SUPPORTED BY THE SIMONS AND SLOAN FOUNDATIONS RECEIVED 875 PER WEEK FOR HOUSING, PLUS REGISTRATION AND TRAVEL SUPPORT. PHYSICISTS' SUMMER BILLS ARE REDUCED BY THE AMOUNT OF SUPPORT; ACCOUNT OVERPAYMENTS ARE REFUNDED BY CHECK. WINTER SUPPORT IS NORMALLY AWARDED TO JUNIOR SCIENTISTS AND THOSE SCIENTISTS WITH A DEMONSTRATED NEED IN ORDER TO ATTEND. THIS SUPPORT IS USED TO REDUCE THE PHYSICIST'S WINTER BILL OR IS REFUNDED BY CHECK. ASPEN CENTER FOR PHYSICS AWARDS TRAVEL SUPPORT TO QUALIFIED PHYSICISTS FROM COUNTRIES WITH LIMITED SCIENTIFIC FUNDING, PREFERABLY FROM THE DEVELOPING WORLD. FUNDING IS PROVIDED BY A SIMONS FOUNDATION GRANT FOR THESE UNDERFUNDED INDIVIDUALS. PHYSICISTS MUST PROVIDE RECEIPTS FOR TRAVEL, AND AN EXPLANATION OF THEIR FULL TRIP PLANS. ONCE THESE DOCUMENTS HAVE BEEN REVIEWED IN THE ASPEN, COLORADO OFFICE, CHECKS ARE ISSUED IN THE U.S. TO THE INDIVIDUAL OR TO THE INDIVIDUAL'S INSTITUTION TO REIMBURSE THE PHYSICIST FOR ACP'S PORTION OF TRAVEL. MOST ASSISTANCE PROVIDED BY ASPEN CENTER FOR PHYSICS IS APPLIED TOWARD THE PHYSICIST'S OUTSTANDING BILL AT THE CENTER. MOST PARTICIPANTS PAY AN ADDITIONAL BALANCE DUE TO THE CENTER SINCE ASSISTANCE AMOUNTS LISTED HERE DO NOT REACH THE MINIMUM COST FOR ATTENDING A CENTER PROGRAM. OCCASIONALLY THE AWARDEE WILL RECEIVE A CASH REIMBURSEMENT, IN THE FORM OF A CHECK DRAWN ON THE CENTER'S BANK, AFTER THE AWARDEE PROVIDES RECEIPTS AND DOCUMENTATION PROVING THAT THE REIMBURSEMENT IS FOR HOUSING OR TRAVEL EXPENSES REQUIRED FOR WINTER OR SUMMER ATTENDANCE AT ASPEN CENTER FOR PHYSICS. X X false false false false false false false false false AMANDA JENKINS ADMIN VICE PRESIDENT 152333 9140 161473 ALEXANDER GROSBERG TRUSTEE 1200 3 WEEKS HOUSING ON-SITE PROGRAMMING CLARE YU TRUSTEE 2000 5 WEEKS HOUSING ON-SITE PROGRAMMING CSABA CSAKI TRUSTEE 800 2 WEEKS HOUSING ON-SITE PROGRAMMING ENRICO RAMIREZ-RUIZ TRUSTEE 800 2 WEEKS HOUSING ON-SITE PROGRAMMING ILYA MANDEL OFFICER 1200 3 WEEKS HOUSING ON-SITE PROGRAMMING LAURA REINA OFFICER 1600 4 WEEKS HOUSING ON-SITE PROGRAMMING MATTIAS TROYER OFFICER 1200 3 WEEKS HOUSING ON-SITE PROGRAMMING QIMIAO SI OFFICER 2000 5 WEEKS HOUSING ON-SITE PROGRAMMING RISA WECHSLER TRUSTEE 1200 3 WEEKS HOUSING ON-SITE PROGRAMMING SUVI GEZARI OFFICER 400 1 WEEK HOUSING ON-SITE PROGRAMMING VICKY KALOGERA OFFICER 2000 5 WEEKS HOUSING ON-SITE PROGRAMMING VIJAY BALASUBRAMANIAN OFFICER 1200 3 WEEKS HOUSING ON-SITE PROGRAMMING WASHINGTON TAYLOR TRUSTEE 800 2 WEEKS HOUSING ON-SITE PROGRAMMING ZOLTAN LIGETI OFFICER 1200 3 WEEKS HOUSING ON-SITE PROGRAMMING SCHEDULE L, PART III VICKY KALOGERA OFFICER 2,000 5 WEEKS HOUSING ON-SITE PROGRAMMING VIJAY BALASUBRAMANIAN OFFICER 1,200 3 WEEKS HOUSING ON-SITE PROGRAMMING WASHINGTON TAYLOR TRUSTEE 800 2 WEEKS HOUSING ON-SITE PROGRAMMING ZOLTAN LIGETI OFFICER 1,200 3 WEEKS HOUSING ON-SITE PROGRAMMING SCHEDULE L, PART V HOUSING AND REGISTRATION ASSISTANCE WAS PROVIDED TO INDIVIDUALS WHO PARTICIPATED IN CENTER PROGRAMMING. SOME INDIVIDUALS ARE PAID DIRECT REIMBURSEMENTS BY THE CENTER FOR COSTS INCURRED (UP TO A STANDARD, MAXIMUM AMOUNT), AND SOME INDIVIDUALS BENEFIT FROM INDIRECT SUPPORT BY HAVING HOUSING AND/OR REGISTRATION COSTS PAID FOR ON THEIR BEHALF BY GRANT AND/OR CONTRIBUTION FUNDING RECEIVED BY THE CENTER. ALL MEMBERS, TRUSTEES, AND OFFICERS WHO RECEIVE ANY DIRECT REIMBURSEMENTS FROM THE CENTER, OR WHO INDIRECTLY BENEFIT BY HAVING COSTS PAID FOR ON THEIR BEHALF, ARE INCLUDED IN THIS SCHEDULE. THE AMOUNTS INCLUDED IN SCHEDULE L MAY NOT RECONCILE TO EXPENSES IN PT. IX, LINE 2 BECAUSE OF THE FOLLOWING REASONS: 1) REGISTRATION FEES ARE PAID TO THE CENTER BY ALL PARTICIPANTS TO COVER COSTS ASSOCIATED WITH PROGRAMMING, WHICH TAKES PLACE AT THE CENTER. BECAUSE THIS EXPENSE IS NOT PAID TO A THIRD PARTY, IT IS NOT INCLUDED IN THE SCHEDULE OF FUNCTIONAL EXPENSES. THE REGISTRATION EXPENSE IS INTENDED TO COVER THE COSTS OF THE CENTER, INCLUDING EXPENSES SUCH AS UTILITIES, MAINTENANCE/REPAIRS, SUPPLIES, STAFFING, ETC. 2) HOUSING UNITS ARE RESERVED BY THE CENTER FOR LONG-TERM PERIODS IN ORDER TO ENSURE HOUSING IS AVAILABLE FOR PHYSICISTS. THE COSTS OF THE HOUSING ARE PAID FOR BY THE CENTER TO VARIOUS LANDLORDS OR MANAGEMENT COMPANIES. PERSONS WHO RECEIVE HOUSING ASSISTANCE HAVE HOUSING FEES WAIVED OR REDUCED. THE COSTS OF HOUSING PROVIDED TO THE PHYSICISTS IS INCLUDED IN "HOUSING RENTS" IN PT. IX, LINE 24A. X 1 26322 BROKERAGE STATEMENT false true false FORM 990 - ORGANIZATION'S MISSION ASPEN CENTER FOR PHYSICS IS A SCIENTIFIC ORGANIZATION WHICH PROMOTES ORGANIZED RESEARCH IN PHYSICS, ASTROPHYSICS, AND RELATED FIELDS THROUGH PROGRAMS OF INDIVIDUAL AND COLLABORATIVE RESEARCH, WORKSHOPS, AND CONFERENCES, AS WELL AS PROMOTES THE EDUCATION OF THE GENERAL PUBLIC THROUGH PUBLIC LECTURES AND OTHER ACTIVITIES. FORM 990, PAGE 1, PART I, LINE 6 SEVENTY-FOUR VOLUNTEER BOARD MEMBERS PERFORM ALL OF THE SCIENTIFIC MANAGEMENT AND ADMINISTRATION OF THE CENTER. THEY ALSO MAKE DECISIONS ON THE NON-SCIENTIFIC MANAGEMENT OF THE CENTER. OTHER VOLUNTEERS: -- 19 LECTURERS, DIALOGUE SPEAKERS, AND SUMMER AND WINTER KIDS SPEAKERS OFFERED FREE-OF-CHARGE PUBLIC LECTURES TO LOCAL AND VISITING ASPEN AUDIENCES. -- 16 COLLOQUIUM SPEAKERS DELIVERED TALKS ABOUT THEIR FIELDS FOR ALL PHYSICISTS IN RESIDENCE, PARTICULARLY FOR THOSE WHO WORK IN FIELDS OTHER THAN THE SPEAKER'S. - 34 WINTER ORGANIZERS PROPOSE WORKSHOP OR CONFERENCE TOPICS AND THEN MANAGE THE EVENT. FORM 990, PAGE 2, PART III, LINE 4A SUMMER AND WINTER PROGRAMS: SINCE ITS INCEPTION IN 1962, ASPEN CENTER FOR PHYSICS HAS PROVIDED A UNIQUE PHYSICAL AND SCIENTIFIC ENVIRONMENT IDEALLY SUITED FOR STIMULATING INTERACTIONS, COLLABORATIONS, AND INNOVATION IN PHYSICS RESEARCH. FOR 16 WEEKS EACH SUMMER, MORE THAN 500 LEADING INTERNATIONAL RESEARCHERS, FREED FROM THE USUAL CONSTRAINTS AND DISTRACTIONS OF THEIR HOME INSTITUTIONS, COME TO ASPEN TO ENGAGE IN RESEARCH AT THE FOREFRONT OF THEIR FIELDS. RESEARCH IS CONDUCTED: (A) IN THE CONTEXT OF WORKSHOPS IN AREAS AT THE FOREFRONT OF PHYSICS RESEARCH; (B) IN SMALL GROUPS FOCUSED ON SPECIFIC PROJECTS; OR, (C) BY INDIVIDUAL INVESTIGATORS CARRYING OUT THEIR OWN RESEARCH. THE SCIENTIFIC PROGRAMS EMPHASIZE OPEN PROBLEMS AT THE CUTTING EDGE AND ARE DESIGNED TO MAXIMIZE INFORMAL INTERACTIONS WITHIN EACH AREA AND CROSS-FERTILIZATION BETWEEN DIFFERENT AREAS. WHILE CONTINUING TO PROVIDE LEADERSHIP IN THE CENTRAL AREAS OF PHYSICS (PARTICLE PHYSICS, ASTROPHYSICS, AND CONDENSED MATTER PHYSICS), ASPEN CENTER FOR PHYSICS HAS BEEN OPEN TO NEW DIRECTIONS IN PHYSICS AS WELL AS TO SCIENCE AT THE INTERFACE BETWEEN PHYSICS AND OTHER DISCIPLINES (BIOLOGY, CHEMISTRY, ENGINEERING, MATERIAL SCIENCE, AND MATHEMATICS). IN ADDITION, 8 ONE- WEEK WINTER CONFERENCES BRING TOGETHER UP TO 110 RESEARCHERS PER WEEK IN AREAS OF CURRENT INTEREST IN PHYSICS AND INTER-DISCIPLINARY PHYSICS RESEARCH. THE CENTER PROVIDES OFFICE SPACE, OFFICE SUPPLIES, MEETING SPACE, LIBRARY FACILITIES, AND NETWORK ACCESS TO ITS PARTICIPANTS. SUPPORT IS PROVIDED TO ALL INDIVIDUALS DURING THE SUMMER SESSION FOR WHOM LODGING IS ARRANGED BY THE CENTER. PHYSICISTS' SUMMER BILLS ARE REDUCED BY THE AMOUNT OF SUPPORT; OVERPAYMENTS ARE REFUNDED BY CHECK. WINTER SUPPORT IS USUALLY AWARDED TO JUNIOR SCIENTISTS AND THOSE WITH A DEMONSTRATED NEED IN ORDER TO ATTEND. DURING THE FISCAL YEAR ENDED MARCH 31, 2024, THERE WERE 563 SUMMER PARTICIPANTS (SUMMER 2023) AND 624 WINTER PARTICIPANTS (BETWEEN JANUARY AND MARCH 2024). FORM 990, PAGE 2, PART III, LINE 4B OUTREACH PROGRAM: ASPEN CENTER FOR PHYSICS OUTREACH PROGRAM INCLUDES MANY OPTIONS AND AVENUES FOR THE PUBLIC TO BECOME INFORMED ABOUT CUTTING-EDGE PHYSICS RESEARCH, AND TO ENGAGE CHILDREN AND YOUTH IN OPPORTUNITIES FOR FURTHER EDUCATION IN THE SCIENCES. (1) PUBLIC LECTURES. A CORE OUTREACH ACTIVITY FOR THE CENTER. RENOWNED PHYSICISTS DELIVER WINTER AND SUMMER LECTURES IN ASPEN VENUES DELINEATING THEIR CURRENT RESEARCH OR CURRENT SCIENTIFIC TOPICS OF GENERAL INTEREST. SUMMER ATTENDANCE AT 11 LECTURES WAS 910 PEOPLE. WINTER ATTENDANCE AT 8 LECTURES WAS 668. (2) HIGH SCHOOL MENTOR PROGRAM. ACP HIRES RISING SENIOR PHYSICS STUDENTS FROM 3-5 VALLEY HIGH SCHOOLS TO WORK FOR A SUMMER WEEK AT THE CENTER TO SEE WHAT THEORETICAL PHYSICISTS DO AND TO CHAT WITH 2 OR 3 PHYSICISTS ABOUT COLLEGE, CAREERS, AND/OR SCIENCE. ABOUT 19 PHYSICISTS AND STUDENTS PARTICIPATED IN 2023. (3) HIGH SCHOOL MONTHLY RADIO SHOW--RADIO PHYSICS. VALLEY HIGH SCHOOL PHYSICS STUDENTS FROM 3-5 SCHOOLS INTERVIEW PHYSICISTS ON A MONTHLY RADIO SHOW. THIS INTRODUCES THE STUDENTS TO SCIENCE, PUBLIC SPEAKING, AND INFORMS THE LISTENING PUBLIC ABOUT CURRENT PHYSICS TOPICS. THERE WERE 13 STUDENT AND PHYSICIST PARTICIPANTS FOR THIS FISCAL YEAR. (4) ALL PUBLIC LECTURES ARE RECORDED AND ALL VIDEOS ARE AVAILABLE FOR VIEWING ON THE ASPEN CENTER FOR PHYSICS YOUTUBE CHANNEL AND WITH LINKS FROM THE ACP WEBSITE. THERE ARE OVER 350 ACP SCIENTIFIC LECTURES AND INTERVIEWS AVAILABLE ONLINE AT NO CHARGE. FORM 990, PART VI GENERAL MEMBERS-- THE GENERAL MEMBERS SHALL DETERMINE THE GENERAL POLICIES OF THE CENTER, INCLUDING ITS SCIENTIFIC PROGRAM AND ADMISSIONS POLICY. THEY SHALL NOMINATE AND ELECT THE TRUSTEES. GENERAL MEMBERS MUST APPROVE FINANCIAL COMMITMENTS GREATER THAN 250,000, THE SALE OF BUILDINGS OR PROPERTY, CHANGES IN THE MODE OF OPERATIONS OF THE CORPORATION THAT AFFECT ITS PROGRAM, AND CHANGES IN ITS OVERALL POLICIES OR PURPOSE. FINANCIAL COMMITMENTS INCLUDE: (A) SALE OR PURCHASE OF PROPERTY OR BUILDINGS; (B) ENCUMBRANCES ON PROPERTY OR BUILDINGS; (C) CONSTRUCTION CONTRACTS, LOANS FOR NEW CONSTRUCTION; (D) LONG-TERM LEASES; (E) COMMITMENTS WHICH WOULD MATERIALLY CHANGE THE PROGRAM OR OPERATIONS. FINANCIAL TRANSACTIONS WHICH ARE EXCLUDED FROM THIS PROVISION INCLUDE SHORT-TERM LEASES FOR PARTICIPANTS' HOUSING MADE BY THE ADMINISTRATIVE STAFF WITH THE APPROVAL OF THE PRESIDENT AND TREASURER AND ROUTINE, REVOCABLE TRANSFERS OF FUNDS BETWEEN ACCOUNTS. TRUSTEES AND OFFICERS-- THE AFFAIRS OF THE CORPORATION SHALL BE MANAGED BY ITS BOARD OF TRUSTEES WHO NEED NOT BE RESIDENTS OF THE STATE OF COLORADO. THE MANAGEMENT OF THE AFFAIRS OF THE CORPORATION SHALL BE WITHIN THE GENERAL GUIDELINES SET BY THE GENERAL MEMBERS AND SHALL BE CONSISTENT WITH THE BYLAWS AND ARTICLES OF INCORPORATION. CONVEYANCES OF ENCUMBRANCES OF THE PROPERTY OF THE CORPORATION SHALL BE AUTHORIZED BY THE BOARD OF TRUSTEES AND EXECUTED BY THOSE PERSONS DESIGNATED BY THE BOARD SUBJECT TO THE APPROVAL OF THE GENERAL MEMBERS WHEN SO REQUIRED BY THE BYLAWS. FORM 990, PAGE 6, PART VI, LINE 11B APPROXIMATELY A WEEK PRIOR TO FILING THE FORM 990, A DRAFT IN PDF FORMAT IS EMAILED TO OFFICERS AND TRUSTEES. COMMENTS AND CORRECTIONS ARE STRONGLY ENCOURAGED. IN ADDITION, THE ADMINISTRATIVE VICE PRESIDENT AND FINANCE MANAGER DISCUSS THE ENTIRE DRAFT FORM WITH THE PREPARER IN DETAIL IN ADVANCE OF FILING. FORM 990, PAGE 6, PART VI, LINE 15A THE BOARD OF TRUSTEES REVIEWS AND APPROVES THE ADMINISTRATIVE VICE PRESIDENT'S ANNUAL SALARY AND BENEFITS, WITH NO PARTICIPATION BY THE ADMINISTRATIVE VICE PRESIDENT OR OTHER INTERESTED PERSONS. THE SALARY AND BENEFITS ARE ESTABLISHED USING COMPARABLE DATA FOR SIMILARLY QUALIFIED PERSONS IN FUNCTIONALLY COMPARABLE POSITIONS AT SIMILAR NONPROFITS, CONSIDERATION OF ROLES AND RESPONSIBILITIES OF THE ADMINISTRATIVE VICE PRESIDENT, AND COST OF LIVING DATA. COMPARABLE MARKET DATA ARE OBTAINED FROM SALARY SURVEYS AND FORM 990S FILED BY COMPARABLE NOT-FOR-PROFIT ORGANIZATIONS. THE CENTER HAS A TRAVEL POLICY THAT CAPS REIMBURSEMENT LEVELS AND REQUIRES LOW-BUDGET TRAVEL. FORM 990, PAGE 6, PART VI, LINE 15B A LINE ITEM BUDGET IS APPROVED BY THE GENERAL MEMBERS ANNUALLY. THEY APPROVE THE OVERALL SALARIES AND BENEFITS EXPENSES. DISCUSSIONS AND DECISIONS REGARDING THE BUDGET ARE DOCUMENTED IN BOARD MEETING MINUTES. THE BOARD OF TRUSTEES REVIEW AND APPROVE THE SALARIES AND BENEFITS OF THE ADMINISTRATIVE VICE PRESIDENT AND THE FINANCIAL MANAGER, WITH NO PARTICIPATION BY THE INTERESTED PERSONS, IN ACCORDANCE WITH THE ANNUAL BUDGET. SALARIES AND BENEFITS ARE ESTABLISHED USING COMPARABLE DATA FOR SIMILARLY QUALIFIED PERSONS IN FUNCTIONALLY COMPARABLE POSITIONS AT SIMILAR NONPROFITS, CONSIDERATION OF ROLES AND RESPONSIBILITIES OF THE OFFICER OR KEY EMPLOYEE, AND COST OF LIVING DATA. COMPARABLE MARKET DATA ARE OBTAINED FROM SALARY SURVEYS AND FORM 990S FILED BY COMPARABLE NOT-FOR-PROFIT ORGANIZATIONS. FORM 990, PAGE 6, PART VI, LINE 19 WE CONSIDER REQUESTS ON A CASE-BY-CASE BASIS. FORM 990, PART XI, LINE 9 PARTICIPANT SUPPORT - INTERNAL CHARGES 619,545